Industry Patents
Patent: 7598859
Method and System for Controlling Lighting
(Click image for PDF of full patent)
| Patent Number: |
7598859 |
| Title: |
Method and System for Controlling Lighting |
| Abstract: |
A method and system for controlling lighting in a space reduces energy
consumption of the light sources by changing at least one of the color
rendering index (CRI) and the correlated color temperature (CCT) while
maintaining illumination levels. Preferably, the method and system sense
movement of people in the space relative to light sources that light the
space, and automatically and individually adjust plural solid state
lighting devices that form each of the respective light sources to a
first lighting condition when people are in a first position, wherein the
lamps respectively emit light of a first illumination level and a first
CRI at a first electrical power level, and to a second lighting condition
when people are in a second position, wherein the light sources
respectively emit light of the first illumination level and a smaller CRI
than the first CRI and at a lower electrical power level than the first
electrical power level.
|
| Country of Issue: |
US |
| First Named Inventor: |
Laski, Chipalkatti |
| Assignee: |
Osram Sylvania |
| Continuation or Divisional of: |
|
| International Classification: |
G08B 1/08 |
| US Classification: |
340/539.3 |
| Issue Date: |
10-06-2009 |
| Filing Date: |
08-03-2005 |
| Application : |
11/161449 |
| Notes: |
|
| Link to Patent at freepatentsonline.com: |
7598859 at Freepatentsonline |
| Link to World Patent Family1: |
World Patent Family at European Patent Office |
| Link to Google Patents1: |
7598859 at Google Patents |
1. The Google Patents and World Patent Family links will likely not work until a few weeks
after the patent has issued - they take a while to get new patents in their systems.
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